Mason&#39;s line anchoring device



Sept. 24, 1940.

0. E. FRISK MASONS LINE ANCHORING DEVICE Filed April 22, 1940 2 Sheets-Sheet 1 Jnzren for Oscar E. fills/f y hzsAfl'or'n s Maw Wa Filed April 22, 1940 2 Sheets-Sheet 2 .iEn

LII m fiizreni'or 006611 E. His/r his Aflor'ne 04m W944 Patented Sept. 24, 1940 UNITED 'STATES PATENT OFFICE '7 Claims.

My invention provides an extremely simple and highly efiicient masons line anchoring device especially adapted for useby bricklayers. In the laying of walls of cement block buildings it is customary to first lay the corner portions and thereafter fill in the wall between the first laid corner portions. In doing this it is customary to use a line that will be stretched or drawn taut on the level from the top of the last laid layer at the one corner to the top of the last laid layer of the adjacent corner; and to use the line thus laid to guide the mason in laying the successive brick layers not only on the level but so that the intermediately laid layers will match the corner layers.

Various anchoring devices have been provided for the above purpose, but my invention provides an improved device capable of being more easily and accurately anchored to the previously laid brick layers and to hold the line taut or properly stretched.

This improved device involves various novel features that result in improved actions as will be hereinafter more fully described in connection with the accompanying drawings wherein like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a plan view with some parts broken away showing my improved anchoring device applied on a block wall;

Fig. 2 is an elevation of the parts shown in Fig. 1;

Fig. 3 is a view showing in perspective the anchoring member which is at the left in Figs. 1 and 2, some parts being broken away;

Fig. 4 is a view showing in perspective the anchoring member which is at the right in Figs. 1 and 2, some parts being broken away;

Fig. 5 is a fragmentary view showing parts that are in the vicinity of the line marked 55 on Fig. 4, looking at the same from the right toward the left; and

Fig. 6 is a view corresponding to Fig. 3 but showing the anchoring member there illustrated turned upside down or reversed from the position shown in Fig. 3; and

Fig. 7 is a section on the line 1-1 of Fig. 3.

The complete anchoring device involves two anchoring bars with projecting grapple lugs, one of which bars is provided with a line take-up block. These anchoring bars are preferably made from fiat commercial steel. One of these bars is indicated by the numeral l0, and the other is indicated by the numeral l I. At one end the bar is provided with reversely bent or ofiset grapple lugs l2 and I3, and the other anchoring bar, at its end, is likewise provided with reversely bent or offset grapple lugs l4 and I5.

At one side, the bar l0, at its intermediate porshaped bracket that is rigidly but adjustably se- 1 cured to said bar by a nut-equipped stud l9 that may be passed at will through either of two longitudinally spaced holes on said bar In. Likewise bar I I is provided with an adjustable grapple lug l8a that is rigidly secured thereto by a nutequipped bolt 39a passed through one or the other of spaced holes 20a.

The line or flexible cord is indicated by the I numeral 2|. To guide the line along the upper surface of the laid bricks, the anchoring lugs I6, I

I1 and I8 are preferably notched at l6, l1 and I8. The anchoring lug I8 is similarly notched at I8b. To take up the slack of the line 2|, the bar I I is provided on the same side with the lugs l5 and I! with a line take-up block 22 rigidly secured to said bar by a nut-equipped bolt l9a which also secures the lug 18w. This block 22 is located toward the end of the bar ll beyond the intermediate grapple lug IT. The block 22 is notched at its ends so that the line wound thereon will not slip off.

It is now desirable to state that the distance between the lugs l3 and N5 of bar l0 and the distance between the lugs l5 and ll of the bar II is slightly greater than four inches so that the anchoring bars may be applied to blocks of eight inches in width, as indicated in one instance which shows the bar H thus applied in Fig. 6. The holes 20 to receive the bolt I9 are so spaced that the adjustable grapple lug l8 can be spaced from the lug l2, either 12 inches or 16 inches.

Also, the holes 20a in bar I l are so spaced that the lug I8a can be spaced from the lug I4 either twelve inches or sixteen inches. The said lugs, it will be understood, should be spaced very slightly greater than the above noted twelve inches and sixteen inches so that the anchoring bars can be readily applied crosswise of the blocks and then anchored by a slight angular movement which causes the opposing lugs to grip the sides AIS of the blocks under the strain put upon the bars by the tension in the line.

The block 22 will always be outward of the intermediate lugs I! of bar ll so that when the anchoring bar is applied to narrow bricks, as shown in Fig. 6, it will not interfere with the gripping action on the brick. When the anchoring bars are to be applied to masonry walls 'of twelve inches in width, whether formed from one or more blocks, the bars will be applied as shown in Figs. 1, 2, 3, and 4.. When the said bars are to be applied to masonry walls of sixteen inches in width, the lugs of the said bars will be adjusted to the outer holes.

In Fig. 2 the full lines show the anchoring bars applied to a lower block layer and the dotted lines show the same applied to the next higher or upper layer. Of course, the bars can be adjusted to gaps of any desired length in the wall structure. In applying the line by the use of this improved device the line will be wrapped more or less about the block 22 so as to give the proper spacing of the anchor bars. Then the bars will be spread so as to draw the line taut and then the anchoring bars will be released, thereby tilting the bars or pulling the same into angular positions that will cause the gripping of the lugs thereof against the sides of the wall. In practice usually the tension will first be put on one of the bars to cause its gripping action, and then the other bar will be pulled laterally and released in the angular position shown with the line under tension. In this way the line can be very quickly, accurately and efiectually aligned with the brick layers for the purposes stated.

In the application of the device, the line will be tied or anchored to the intermediate or outer grapple lug of the one bar, will be guided by the corresponding lug of the other bar, and the slack,

as already indicated, will be taken up by the block 22.

In any event, the final anchoring of the bars to the masonry or wall will be accomplished by tension on the line which tends to rock the bars on the engaged end lug and thereby produces the wall gripping action between the spaced grapple lugs.

Obviously the device which has been specifically described for use in connection with concrete blocks may be applied to bricks or blocks of any other dimensions than those indicated.

What I claim is:

1. A line anchoring device involving two substantially straight bars each provided at one end with laterally and reversely projected grapple lugs, said bars at one side having fixed intermediate grapple lugs, said bars on their other sides having laterally projecting grapple lugs spaced farther from the cooperating end lugs than are the first noted intermediate lugs spaced from their cooperating end lugs.

2. The structure defined in claim 1 in which said last noted lugs are longitudinally adjustable on said anchoring bars.

3. The structure defined in claim 1 in which said intermediate lugs are provided with notches adjacent to the faces of their respective bars.

4.'A line anchoring device involving two bars each provided at one end with laterally and re- :versely projecting grapple lugs, said bars on one side of the intermediate portions having fixed grapple lugs spaced from the said end lugs, said bars beyond said first noted intermediate lugs having other grapple lugs that project in the opposite direction from the first said intermediate lugs.

5. The structure defined in claim 4 in which last said outer-most lugs are longitudinally adjustable on said bars.

6. The structure defined in claim 4 in which last said outer-most lugs are longitudinally adjustable on said bars, one of said bars further having a line-winding block that is secured for longitudinal adjustments with the adjustable lug of that bar.

'7. The structure defined in claim 4 in which last said outer-most lugs are longitudinally adjustable on said bars, one of said bars further having a line-winding block that is secured for longitudinal adjustments with the adjustable lug of that bar, the said intermedate and adjustable lugs of said bars having line-guiding notches adjacent to the faces of the respective bars.

OSCAR E. FRISK. 

